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Freeze fracture image of the surface ridges at the anterior end of the cell where kineties to the right and left sides come together at an angle at the anterior suture tip. In this area are numerous plates of IMPs (arrows) in the P-face of the plasma membrane. Rings and rosette IMPs at the trichocyst exocytic sites (arrowheads) are also seen. EM taken on 10/2/80 by R. Allen with HU 11A TEM. Neg. 10,000X. Bar = 1µm. |
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